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Become a knowledge manager at UWC 2024
The American Nuclear Society is now accepting applications for knowledge managers to work during the 2024 Utility Working Conference and Vendor Technology Expo. This year’s UWC, “Nuclear Momentum: Advancing Our Clean Energy Future,” will be held August 4–7, 2024, at the JW Marriott Marco Island Beach Resort on Marco Island, Fla.=
I. Toumi, D. Caruge
Nuclear Science and Engineering | Volume 130 | Number 2 | October 1998 | Pages 213-225
Technical Paper | doi.org/10.13182/NSE98-A2001
Articles are hosted by Taylor and Francis Online.
A new numerical method for three-dimensional two-phase flow computations is presented. The method has been implemented within the FLICA-4 computer code, which is devoted to three-dimensional thermal-hydraulic analysis of nuclear reactor cores. This numerical method is based on a finite volume technique, where convective fluxes at cell interfaces are calculated with an approximate Riemann solver. A strategy for constructing this linearized Riemann solver, which extends Roe's scheme, to solve two-phase flow equations is described. Extension to a second-order-accurate method is achieved using a piecewise linear approximation of the solution and a slope limiter method. For advancing in time, a fully implicit integrating step is used. Some improvements performed to obtain a linearized implicit solution method that provides fast-running steady-state calculations are also presented. This kind of numerical method, which is widely used for fluid dynamic calculations, is proved to be very efficient for the numerical solution to two-phase flow problems.